JPH05276580A - Remote controller for equipment - Google Patents

Abstract

PURPOSE:To provide the remote controller for an equipment in which high water-tightness is maintained over a long period with high durability. CONSTITUTION:In the remote controller 100 for an equipment in which an electric signal generating device 101 is contained in the inside, a cylindrical part 2 for extracting a lead wire L2 is protruded to a rear side 13 of a water- tight case 1 on the front side of which an operation means 102 of an electric signal generating device is provided and the cylindrical part 2 is inserted to a fitting hole 200 made to a wall of a building and fixed thereto, the leadout part of the lead wire L2 consists of a plug 3 inserted in the cylindrical part 2 and fixed water-tightly, lead pins 4 provided through the plug 3 air-tightly and water-tightly, and an inner plug socket 6 and an outer plug socket 7 connecting to lead wires L1, L2 respectively, freely fitted into the cylindrical part and connecting to the projection of the lead pins 4 protruded to both sides of the plug 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control device for equipment suitable for being installed in a place where water is easily splashed, such as a bathroom.

[0002]

2. Description of the Related Art In a bathroom water heater, a main body is installed outdoors, a main remote control device (main remote control) is fixed to a predetermined indoor wall, and a sub remote control device (sub remote control) is fixed to a bathroom wall. To be done. In this sub remote controller, an electric signal generating device is housed in a flat box-shaped watertight case, operation means of the electric signal generating device is provided on the surface, and a lead wire extraction tube is provided on the back surface of the case. The protruding portion is provided. The sub remote controller is fixed by inserting the tubular portion into a hole formed in the wall of the building, and a plurality of lead wires are pulled out from the tubular portion. Further, since the sub remote controller is installed in a place where it is easily splashed with water, it needs to have a waterproof structure for protecting internal electric parts.

[0003]

However, in the conventional sub remote controller, since the watertightness of the lead wire lead-out portion is secured by filling the tubular portion with a waterproof filler such as silicon, the watertightness of the lead remote control portion is aged. After being lost for several years, the waterproofness deteriorates, and there is a drawback that the internal electric signal generating device fails.
In addition, a remote control device such as this sub remote control that is used in a room where the temperature changes suddenly has a minimum air permeability because the case swells or dents due to the fluctuation of the bathroom temperature when the case is highly airtight. Is desirable. An object of the present invention is to provide a remote operation device for equipment which can maintain high water tightness for a long period of time and has high durability.

An object of the invention described in claim 2 is to provide a remote control device for equipment which has high water-tightness and has breathability capable of preventing fluctuation of internal pressure due to temperature change. It is an object of the invention as set forth in claim 3 to provide a remote control device for equipment in which the function of preventing separation of the outer outlet and the inner outlet is increased. An object of the invention described in claims 4 to 6 is to provide a remote control device for a device in which the outer outlet is difficult to pull out even if the lead wire of the outer outlet is pulled during installation work or the like.

[0005]

SUMMARY OF THE INVENTION According to the present invention, an electric signal generating instrument is housed inside, and a lead wire is taken out from the back surface of a watertight case in which the operating means of the electric signal producing instrument is provided. In a remote control device for a device in which a tubular portion is provided in a protruding manner, and the tubular portion is fitted into a hole formed in a wall of a building and fixed, the lead wire take-out portion is fitted into the tubular portion and is watertight. A fixedly fixed plug body, lead pins penetrating the plug body in an airtight and watertight manner, and lead wires respectively connected and loosely fitted in the cylindrical portion, and on both sides of the plug body. It is characterized by comprising an outer outlet and an inner outlet connected to the protruding portion of the protruding lead pin.

According to a second aspect of the present invention, the remote control device is characterized in that the plug body is provided with a vent hole, and the vent hole is covered with a film body having air permeability and watertightness. The remote control device according to claim 3, wherein the plug body is made of resin, and projections with locking steps are integrally formed on both surfaces, and the outer outlet and the inner outlet each have an engaging portion of the projection. It is characterized by being formed.

According to a fourth aspect of the present invention, in the remote control device, the protrusion has a plate shape, and the outer outlet is made of resin.
The outlet main body and the engaging portion formed in a plate shape with a locking step integrally formed with the outlet main body, and the protrusion and the engaging portion are engaged with each other by elasticity of the protrusion and the engaging portion. The protrusion is inserted between the engagement portion and the outlet main body by utilizing the above, and the engagement step of the protrusion and the engagement step of the engagement portion are engaged with each other. ..
The remote control device according to claim 5, wherein a spacer for supporting the outer surface of the engaging portion on the inner wall of the tubular portion is detachable between the engaging portion and the inner wall of the tubular portion. It is characterized by being attached. A remote control device according to a sixth aspect of the present invention is characterized in that the spacer has an air passage communicating with the air hole.

[0008]

In the remote control device of the present invention, the tubular portion is closed with the plug body, the lead pins are provided through the plug plate in an airtight and watertight manner, and the outlets are connected to both sides of the lead pin. Can be reliably waterproofed for a long time. As a result, it is possible to redundantly prevent the occurrence of a failure in the electric signal generating device. In the configuration according to claim 2, since the vent hole provided in the plug body is closed by the air-permeable and water-tight film body, the internal pressure can be maintained at the atmospheric pressure, and the case due to temperature change It is possible to prevent deformation of the product, rust due to humidity, and poor conduction. In the configuration according to the third aspect, the fastening force of the outer outlet and the inner outlet to the stopper plate can be increased, and the occurrence of poor contact hardly occurs. In the configurations according to claims 4 to 6, the resistance against the pulling force of the lead wire of the outer outlet can be increased, and the outer outlet is less likely to come off.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described based on the embodiments shown in FIGS. The remote control device 100 of the present invention accommodates an electric signal generating instrument 101 such as a switch inside and
1 is provided with a plastic case (watertight box) 1 in which an operating means 102 of the signal generator 101 is provided.
The case 1 has a flat rectangular box shape, and is formed by air-tightly joining an injection-molded front side portion 12 and back side portion 13. The front side portion 12 is covered with an airtight and watertight film 14 on the entire surface 11 and has a large number of pushbuttons 1.
5 is provided to constitute the operating means 102. The tubular portion 2 is provided at the center of the rear surface of the back side portion 13 so as to project from the lead wire L.
_{It is} a take-out part of ₁ .

This case 1 has a mounting hole 2 in a wall W of a bathroom B.
00, insert the tubular portion 2 into the hole 200,
Fastening cylinder 1 having a flange portion 16 that is locked to the back surface of the wall W
An external screw 18 provided at the tip of the tubular portion 7 and an internal screw 21 provided at the tip of the tubular portion 2 are screwed together and fixed. A waterproof seal 20 is provided between the back surface of the back side portion 13 and the surface of the wall W.
1 is interposed. An inner peripheral projection 22 is provided on the base side of the cylindrical portion 2, and a plastic-made circular plate-shaped member is formed between the projection 22 and the outer screw ring 23 screwed onto the inner screw 21. The stopper 3 is fixed. An O-ring 24 is interposed between the ridge 22 and the plug body 3 to maintain airtightness and watertightness.

A pair of pins 4 and 4 are provided in the stopper 3 in parallel with each other so that both ends thereof project from both sides of the stopper 3.
Each pin 4 is made of metal and has a prismatic shape, and is integrated during injection molding of the plug body 3, and the penetrating portion where the pin 4 penetrates the plug body 3 is kept airtight and watertight. Further, projections 5 and 5 with locking steps 51 for fixing the outlet are symmetrically provided on both surfaces of the plug body 3. Each protrusion 5
The plug 3 has a flat plate shape integrally molded with the same plastic material, and is formed in a direction parallel to the line connecting the pins 4 and 4. The tip of the projection 5 is thick and has a wedge shape, and the locking step 51 is provided on the opposite side of the pins 4 and 4.

In the inner terminal portions 41, 41 in which the pins 4, 4 are formed so as to project on both sides of the plug body 3, the inner outlet 6 provided at the tip of the lead wire L ₁ from the electric signal generating device 101. Are connected. Pins 4 and 4 are plugs 3
An outer outlet 7 provided at the tip of a lead wire L ₂ connected to a water heater body (not shown) is connected to the outer terminals 42, 42 formed so as to project to the outside. As shown in FIGS. 5 to 7, the outer outlet 7 has a pair of outlet holes 7 into which the outer terminals 42, 42 are fitted on the end faces.
Resin outlet main body 72 in which 1, 71 are formed
And an engaging portion 8 that is integrally formed on the side surface of the outlet main body 72 and that engages the protrusion 5. In the outlet hole 71, the terminal fitting 7 connected to the lead wire L ₂
4 are accommodated.

The engaging portion 8 has a connecting portion 81 projecting laterally from the middle portion of the side wall of the outlet main body 72, and a plate-like portion 82 extending in the longitudinal direction of the tip end side thereof. The front end side (upper side in the drawing) of the plate-shaped portion 82 is the locking claw 83 of the protrusion 5.
The locking step 8 is provided on the outlet main body 72 side.
4 are provided. The protrusion 5 and the engaging portion 8 are engaged with each other by utilizing the elasticity of the protrusion 5 and the engaging portion 8 to allow the protrusion 5 to engage with the engaging portion 8.
Is inserted between the socket main body 72 and the socket main body 72, and the locking step 51 of the protrusion 5 and the locking step 84 of the engaging portion 8 are engaged with each other. On the rear end side of the plate-shaped portion 82, the expansion lever portion 8 of the locking claw 83 is provided.
By pushing the lever portion 85 toward the outlet main body 72 side, the gap between the locking claw 83 and the outlet main body 72 is widened, so that the protrusion 5 can be easily attached and detached. The inner outlet 6 has a symmetrical structure with the outer outlet 7 and the plug 3 as a plane of symmetry.

A vent hole 31 is opened in the plug body 3,
The vent hole 31 is closed by a porous film 32 (film body) that has air permeability and watertightness. In this embodiment, the vent hole 31 is formed outside the protrusion 5. The porous film 32 can be made of a water-tight material having a minimum air permeability such as a porous fluororesin film or a porous ceramic plate, and its shape and structure can be selected as desired. The vent hole 31 is provided to ensure the minimum air permeability in the case 1. The temperature inside the bathroom B suddenly changes and the gas inside the case 1 expands, causing the case 1 to swell, or the reverse. The case 1 is prevented from being dented due to the sudden temperature drop. The porous film 32 may be integrally molded with the plug body 3 by injection of plastic.

FIG. 4 shows a second embodiment. In this embodiment, the tubular portion 2 and the plug body 3 are integrally formed. This structure has an advantage that the number of parts can be reduced.

5 to 7 show a third embodiment. The same reference numerals indicate the same functional objects. In this embodiment, a spacer 9 for supporting the engagement portion 8 on the inner wall 20 of the tubular portion 2 is detachably attached. In this embodiment, the spacer 9 has a substantially prismatic shape, a vertical groove 91 for preventing interference with the engaging portion 8 is provided inside, and a cylindrical surface 92 is provided outside. In addition, the two ventilation paths 93, 9 leading to the ventilation hole 31 of the plug body 3
3, the tip end portion 94 with a wedge-shaped portion is inserted between the inner peripheral wall 25 of the outer screw ring 23 and the outer wall 86 of the plate-shaped portion 82.

In the spacer 9, when the lead wire L ₂ is pulled, the projection 5 and the engaging portion 8 are deformed to disengage the engagement utilizing elasticity, and the outer outlet 7 is pulled out from the tubular portion 2. To prevent. With this configuration, the resistance against the pulling force of the lead wire L ₂ of the outer outlet 7 can be increased, and the outer outlet 7 becomes difficult to pull out. The spacer 9 may have a structure that directly contacts the inner wall 20,
When the mounting position is set at a position that does not overlap the ventilation hole 31, the ventilation passage 93 is unnecessary.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of essential parts of a remote control device for equipment according to the present invention.

FIG. 2 is a perspective view of a tubular portion of a remote control device for equipment according to the present invention.

FIG. 3 is a perspective view of a stopper of the remote control device for an apparatus according to the present invention.

FIG. 4 is a sectional view of a tubular portion according to a second embodiment.

FIG. 5 is a sectional view of a tubular portion according to a third embodiment.

FIG. 6 is a bottom view of a tubular portion according to a third embodiment.

FIG. 7 is a perspective view of a stopper and a spacer according to a third embodiment.

[Explanation of symbols]

1 Case 2 Cylindrical Part 3 Plug 4 Pin 5 Protrusion 6 Inner Outlet 7 Outer Outlet 8 Engagement 9 Spacer 13 Backside of Case (Back) 31 Vent 32 Porous Membrane 100 Remote Control Device 101 Electric Signal generator 102 Operation means 200 Mounting holes (holes) L ₁ and L ₂ lead wires

Claims (6)

[Claims] 1. A cylindrical portion for taking out a lead wire is provided on a rear surface of a watertight case in which an electric signal generating device is housed, and a surface for operating the electric signal generating device is provided. In a remote control device for an apparatus for fitting and fixing the tubular portion in a hole opened in a wall of a building, the lead wire take-out portion is a plug body fitted in the tubular portion and fixed in a watertight manner. A lead pin penetrating through the plug body in an airtight and watertight manner, and a lead wire connected to each lead wire and loosely fitted in the cylindrical portion, and to a protruding portion of the lead pin protruding to both sides of the plug body. A remote control device for equipment, comprising an outer outlet and an inner outlet connected to each other. 2. The remote control device for equipment according to claim 1, wherein the plug body is provided with a vent hole, and the vent hole is covered with a film body having air permeability and watertightness. 3. The plug body according to claim 1, wherein the plug body is made of resin, and projections with locking steps are integrally formed on both sides, and the outer outlet and the inner outlet each have an engaging portion of the projection. A remote control device for equipment. 4. The engagement according to claim 3, wherein the protrusion has a plate shape, the outer outlet is made of resin, and the outlet body has a plate shape with a locking step integrally formed with the outlet body. The protrusion and the engaging portion are engaged with each other by using the elasticity of the protrusion and the engaging portion, and the protrusion is inserted between the engaging portion and the outlet main body. A remote control device for an apparatus, characterized in that the locking step of the projection and the locking step of the engaging portion are engaged with each other. 5. The spacer according to claim 4, wherein a spacer for supporting the outer surface of the engaging portion on the inner wall of the tubular portion is detachably mounted between the engaging portion and the inner wall of the tubular portion. A remote control device for equipment characterized by the above. 6. The remote control device according to claim 5, wherein the spacer has a ventilation path communicating with the ventilation hole.